CVE-2026-43640

Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083	Patch
https://github.com/bitwarden/server/pull/7403	Issue Tracking Patch
https://github.com/bitwarden/server/releases/tag/v2026.4.1	Release Notes
https://sanjokkarki.com.np/blog/bitwarden-scim-key-bypass	Exploit Third Party Advisory
https://www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-key	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-11 18:16

Updated : 2026-07-14 21:16

NVD link : CVE-2026-43640

Mitre link : CVE-2026-43640

CVE.ORG link : CVE-2026-43640

JSON object : View

Products Affected

bitwarden

server

CWE

CWE-303

Incorrect Implementation of Authentication Algorithm

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